Governor.



N0. v4o,4va.- PATENTED wt. 6, 190a.

' J. SOHERER.

GOVERNOR.

ummuron FILED FEB. 20. 1903.

no MODEL.

No. 740,473. v Y Y Patented October 6, 190a.

PATENT OFFICE.

JOHN SCHERER, OF MARINETTE, WISCONSIN.

GOVERNOR.

@PECIFICATION formingpart of Letters Patent No. 740,473, dated October 6, 1903. Application filed February 20, 1903 Serial No. 144,210. (No model.)

State of l/Visconsin, have invented a new and useful Improvement in Governors, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

My invention in governors relates to a novel device adapted to use a liquid medium (as oil, alcohol, water, or other fluid) therein to regulate and control the oscillations of arockshaft. The improved governor may be em-. ployed with rock-shafts operated by a fluidactnating medium wherever they are used, and I have employed such a governor with excellent results in connection with steamactuated rock-shafts in set-works in sawmills.

The invention consists of the governor, its

described and claimed, or'the equivalents thereof.

In the drawings, Figure 1 is a transverse section of my improved governor on line 1 1 of Fig. 2. Fig. 2 is a longitudinal section of the improved governor on line 2 2 of Fig. 1. Fig. 3 isalongitudinal section of the improved governor on line 3 3 of Fig. 1.

In the drawings, 4 represents the shell of a cylinder, and 5 is the'rigid head of the cylinder, which for convenience in construction is castintegrally with the shell 4. Thehead 5 is provided with a central boss 6,1which has a socket in the inner surface thereof, the walls of which socket serve as a bearing for the end of the shaft 7. The other'end of the cylinder is closed by a cylinder-head 8,

secured to the shell 4 releasably. The cylinder-head 8 may be provided with a packing-box 9 and a gland 10, secured adjustably to the box by means-of bolts 11, thus providing means for packing the shaft '7 in the cylinder. A base 12 may be employed to support the cylinder in fixed position.

One object of my invention is to provide a balanced governor employing a liquid medium, and for this purpose the cylinder is to be divided into a plurality of compartments, preferably into two chambers, though more than two chambers may be provided if desired. In the drawings I have shown the cylinder as divided into two chambersA and B by means of partitions or abutment-blocks 13 13, whichare secured to and project rigidly from the, shell 4: at opposite sides thereof and extend lengthwise from one cylinderhead to the other. The shaft 7 is provided with blades 14 14, that are conveniently secured to theshaft by means of a hub 15, advisably formed integrally with the blades, which hub is preferably made cylindrical and of such thickness as is deemed desirable,having in view the size of the shaft in any particular case. These blades 14 and the hub 15 extend on the shaftfrom end to end of the cylinder-chamber, and the outer edges of the blades fit movably but liquid-tight on the inner surface of the cylinder, and their ends inner edges of the abutment-blocks 13 fit onto the exterior surfaces of the hub 15, thereby completely dividing the cylinder into the liq= hid-tight chambers A and B.

The abutment-blocks 13 are each provided with a duct 16 through it connecting the adjacent chambers'A and B. These ducts are of such size as to permit only a limited fiow of the fluid medium from one chamber to the other, being thus adapted to permit only a slow movement of the blades in the chambers from one side thereof to the other when the chambers are filled with a liquid medium, such as oil, alcohol, or water or the equivalent of any of these. I also provide screwthreaded plugs 17 17, turning through the shell 1 into the ducts 16 16, whereby the capacity of the ducts can be diminished, and thereby action of the blades in the chambers can be controlled to such extent as isdesired. Jam-nuts 18 18 turn on the plugs against the shell.

I ad visably bevel the walls of the abutmenthlocks at 19 19, asshown in Fig. 1, so as to fit closely against the sides of the blades 14 when the blades come thereto. This provides for a complete oscillation of the blades with the shaft 7 from side to side of the chambers A B. It will, however, be understood that when the chambers A and B are filled with a. liquid the blades can move from one side of their 'ICO chambers to the other side only so fast as the liquid in front of the blades in the chambers can escape from those chambers, through the ducts 16, into the other chambers and at the then rear of the blades and that this escape of the liquid can be controlled, or at least diminished, by reducing the size of the ducts 16 by the plugs 17.

What I claim as my invention is 1. A liquid medium governor for rockshafts, comprising a fixed cylinder, a shaft mounted in the cylinder axially, rigid parti tions dividing the cylinderlongitudinally into chambers but having ducts permitting the escape of a liquid from one chamber to the other, and blades opposite each other fixed rigidly on the shaft fitted into and movable rotatably with the shaft in the cylinder.

2. A governor for a fiuid-medium-actuated rock-shaft, comprising a cylinder, a rock-shaft mounted revolubly in the cylinder axially, partitions fixed to and rigid in the cylinder dividing the cylinder longitudinally into chambers but having ducts connecting the chambers, blades fixed rigidly on the shaft and fitted into the cylinder-chambers and movable therein revolubly with the shaft, and means adjustably entering the chamber-connecting ducts for reducing the size thereof.

3. A balanced governor for a rock-shaft,

comprising a liquid-medium cylinder, a rockshaft mounted revolubly in the cylinder axially, abutment-blocks fixed in the cylinder opposite each other dividing the cylinder into opposite chambers, the blocks being each provided with a fluid-restricting leaking duct connecting the two chambers, rigid blades fixed opposite each other on the shaft fitting respectively revolubly in each chamber and adapted to move oscillatingly from one side to the other of the chamber.

4:. In a balanced liquid-medium governor JOHN Witnesses:

J OHN S. PETERSON, O. J. SETTERSTEN.

SGHERER. 

